1 /* $NetBSD: bha_eisa.c,v 1.28 2006/11/16 01:32:50 christos Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: bha_eisa.c,v 1.28 2006/11/16 01:32:50 christos Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45
46 #include <machine/bus.h>
47 #include <machine/intr.h>
48
49 #include <dev/scsipi/scsipi_all.h>
50 #include <dev/scsipi/scsiconf.h>
51
52 #include <dev/eisa/eisavar.h>
53 #include <dev/eisa/eisadevs.h>
54
55 #include <dev/ic/bhareg.h>
56 #include <dev/ic/bhavar.h>
57
58 #define BHA_EISA_SLOT_OFFSET 0x0c80
59 #define BHA_EISA_IOSIZE 0x0010
60 #define BHA_ISA_IOSIZE 0x0004
61
62 #define BHA_EISA_IOCONF 0x0c
63
64 static int bha_eisa_address(bus_space_tag_t, bus_space_handle_t, int *);
65 static int bha_eisa_match(struct device *, struct cfdata *, void *);
66 static void bha_eisa_attach(struct device *, struct device *, void *);
67
68 CFATTACH_DECL(bha_eisa, sizeof(struct bha_softc),
69 bha_eisa_match, bha_eisa_attach, NULL, NULL);
70
71 static int
72 bha_eisa_address(bus_space_tag_t iot, bus_space_handle_t ioh, int *portp)
73 {
74 int port;
75
76 switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) {
77 case 0x00:
78 port = 0x330;
79 break;
80 case 0x01:
81 port = 0x334;
82 break;
83 case 0x02:
84 port = 0x230;
85 break;
86 case 0x03:
87 port = 0x234;
88 break;
89 case 0x04:
90 port = 0x130;
91 break;
92 case 0x05:
93 port = 0x134;
94 break;
95 default:
96 return (1);
97 }
98
99 *portp = port;
100 return (0);
101 }
102
103 /*
104 * Check the slots looking for a board we recognise
105 * If we find one, note it's address (slot) and call
106 * the actual probe routine to check it out.
107 */
108 static int
109 bha_eisa_match(struct device *parent, struct cfdata *match,
110 void *aux)
111 {
112 struct eisa_attach_args *ea = aux;
113 bus_space_tag_t iot = ea->ea_iot;
114 bus_space_handle_t ioh, ioh2;
115 int port;
116 int rv;
117
118 /* must match one of our known ID strings */
119 if (strcmp(ea->ea_idstring, "BUS4201") &&
120 strcmp(ea->ea_idstring, "BUS4202"))
121 return (0);
122
123 if (bus_space_map(iot,
124 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
125 0, &ioh))
126 return (0);
127
128 if (bha_eisa_address(iot, ioh, &port) ||
129 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
130 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
131 return (0);
132 }
133
134 rv = bha_find(iot, ioh2);
135
136 bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE);
137 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
138
139 return (rv);
140 }
141
142 /*
143 * Attach all the sub-devices we can find
144 */
145 static void
146 bha_eisa_attach(struct device *parent, struct device *self, void *aux)
147 {
148 struct eisa_attach_args *ea = aux;
149 struct bha_softc *sc = device_private(self);
150 bus_space_tag_t iot = ea->ea_iot;
151 bus_space_handle_t ioh, ioh2;
152 int port;
153 struct bha_probe_data bpd;
154 eisa_chipset_tag_t ec = ea->ea_ec;
155 eisa_intr_handle_t ih;
156 const char *model, *intrstr;
157
158 if (!strcmp(ea->ea_idstring, "BUS4201"))
159 model = EISA_PRODUCT_BUS4201;
160 else if (!strcmp(ea->ea_idstring, "BUS4202"))
161 model = EISA_PRODUCT_BUS4202;
162 else
163 model = "unknown model!";
164 printf(": %s\n", model);
165
166 if (bus_space_map(iot,
167 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
168 0, &ioh))
169 panic("bha_eisa_attach: could not map EISA slot");
170
171 if (bha_eisa_address(iot, ioh, &port) ||
172 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2))
173 panic("bha_eisa_attach: could not map ISA address");
174
175 sc->sc_iot = iot;
176 sc->sc_ioh = ioh2;
177 sc->sc_dmat = ea->ea_dmat;
178 if (!bha_probe_inquiry(iot, ioh2, &bpd))
179 panic("bha_eisa_attach failed");
180
181 sc->sc_dmaflags = 0;
182
183 if (eisa_intr_map(ec, bpd.sc_irq, &ih)) {
184 printf("%s: couldn't map interrupt (%d)\n",
185 sc->sc_dev.dv_xname, bpd.sc_irq);
186 return;
187 }
188 intrstr = eisa_intr_string(ec, ih);
189 sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
190 bha_intr, sc);
191 if (sc->sc_ih == NULL) {
192 printf("%s: couldn't establish interrupt",
193 sc->sc_dev.dv_xname);
194 if (intrstr != NULL)
195 printf(" at %s", intrstr);
196 printf("\n");
197 return;
198 }
199 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
200
201 bha_attach(sc);
202 }
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